Answer:
c
Step-by-step explanation:
Note there is a difference of 1 between consecutive integers.
let an integer be n then then the next one is n + 1 followed by n + 2
Hence
n + (n + 1) + (n + 2) = 36 → C
HELP ASAPPPP!!!!!!!
1. In the figure below, ABC ~ PQR. If the area of ABC is 40 cm2, what is the area of PQR? Show your work.
Answer:
[tex]90cm^2[/tex]
Step-by-step explanation:
The side length AB of triangle ABC corresponds to side length of PQ of triangle PQR.
The scale factor from ABC to PQR is [tex]k=\frac{6}{4}=1.5[/tex]
The area of triangle PQR will change by [tex]k^2=1.5^2=2.25[/tex] centimeters square.
Since we know the area of triangle ABC to be [tex]40cm^2[/tex], the area of triangle PQR [tex]=2.25\times 40=90cm^2[/tex]
Answer:
The area of the triangle PQR is 90 cm^2.
Step-by-step explanation:
We are given two triangles, ABC and PQR, which are similar to each other.
If two triangles are similar, then the ratio of their areas is the square of the ratio of their sides.
Given that area of the triangle ABC is [tex]40cm^2[/tex], we are to find the area of the triangle PQR.
Finding the scale factor [tex]k=\frac{6}{4} =1.5[/tex]
So square of this scale factor will be [tex]k^2=(1.5)^2=2.25[/tex]
Area of triangle PQR = [tex]2.25 \times 40[/tex] = 90cm^2
The measure of angle between diameter
AB
and chord
AC
is 30°. A tangent to the circle at point C intersects line
AB
at point D. Prove that triangle ACD is isosceles
[tex]AB\: is \:the \:diameter\Rightarrow \widehat{ACB}=90°\Rightarrow \widehat{ABC}=180°-90°-30°=60° \: (1) \\ \bigtriangleup OBC \: has \: OB=OC=R\Rightarrow \bigtriangleup OBC \: is \: an \: isosceles \: triangle \: (2) \\ (1),(2)\Rightarrow \bigtriangleup OBC \: is \: an \: equilateral \: t riangle \Rightarrow \widehat{COB} =\widehat{COD} = 60° \\ CD \: tangents \: (O) \: at \: C\Rightarrow OC\perp OD \: at \: C\Rightarrow \widehat{OCD}=90° \\ \widehat{CDO}=180°-\widehat{OCD}-\widehat{COD}=180°-90°-60°=30° \\ In\: \bigtriangleup ACD,\widehat{CAD}=\widehat{CDA}=30°\\\Rightarrow \bigtriangleup ACD\: is\: an\: isosceles\: triangle\: at\: C[/tex]
Triangle ACD is an isosceles triangle, with AC = AD.
What is a triangle?A triangle is a 2-D figure with three sides and three angles.
The sum of the angles is 180 degrees.
We can have an obtuse triangle, an acute triangle, or a right triangle.
We have,
Let O be the center of the circle, and let E be the point where the tangent line to the circle at point C intersects diameter AB.
Since OC is perpendicular to CE (tangent line at C), and OD is perpendicular to AB, angle ECD and angle OAD are alternate angles, and hence congruent.
Now,
Since the measure of the angle between diameter AB and chord AC is 30°, the measure of angle AOC is 60°.
The measure of angle OAD is also 60°.
Now,
Since angles ACD and OAD are congruent, and angle AOC is 60°,
we have:
angle ACD = angle OAD = 60°
Also,
Since OC is perpendicular to AC (radius of the circle),
we have angle OCA = 90°.
Now,
angle ACB
= angle OCA - angle AC0
= 90° - 30°
= 60°
Since angle ACD is equal to angle ACB, and angle AOC is also equal to 60°,
We have:
angle ACD = angle ACB = 60°
angle AOC = 60°
Therefore,
Triangle ACD is an isosceles triangle, with AC = AD.
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convert 15000 ounces to tons
Answer:
The answer is 0.42525 TONS (METRIC)
How many solutions does the equation 5x + 10 = 5x - 8 have?
Answer:
2
Step-by-step explanation:
−12 ≤ 44+x
Solve for x
Answer:
[tex]x \geq -56[/tex]
Step-by-step explanation:
You can solve inequalities the same way as equations as long as whenever you multiply or divide by a negative number, or flip fractions, you change the direction of the sign.
We don't have to do that here, here is the worked solution:
[tex]-12 \leq 44 + x[/tex]
[tex]-56 \leq x[/tex]
[tex]x \geq -56[/tex]
Answer:
x ≥ -56
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
Hope this helps,
Davinia.
What is the surface area of the stand
?
Step-by-step explanation:
first you have to add the PIC to have us answer
which statements are true? select each correct answer.
a) 30a^6-24a^2=3à^2(10a^4-8)
b) 24a^4+18=6(4a^⁴+3)
c) 16a^5-20a^3=4a^3(4a^2-5)
D) 12a^3+8a=4(3a^3+2a)
Answer:
All are True
a) 30a^6-24a^2=3à^2(10a^4-8)
b) 24a^4+18=6(4a^⁴+3)
c) 16a^5-20a^3=4a^3(4a^2-5)
D) 12a^3+8a=4(3a^3+2a)
Step-by-step explanation:
a) 30a^6-24a^2=3à^2(10a^4-8)
since; 3à^2(10a^4-8)
= 30a^6 - 24a^2
b) 24a^4+18=6(4a^⁴+3)
Since; 6(4a^⁴+3) opening the brackets
= 24a^4 + 18
c) 16a^5-20a^3=4a^3(4a^2-5)
Since; 4a^3(4a^2-5) , opening the brackets we get
= 16a^5 - 20^3
D) 12a^3+8a=4(3a^3+2a)
Since;4(3a^3+2a), opening the bracket we get;
= 12a^3 + 8a
Indicate the equation of the given line in standard form. The line with slope and containing the midpoint of the segment whose endpoints are (2, -3) and (-6, 5).
Answer:
x + y = -1
Step-by-step explanation:
To write the equation of a line, find the slope and use it with a point in the point slope form.
You can find the slope using the slope formula.
[tex]m = \frac{y_2-y_1}{x_2-x_1} = \frac{5--3}{-6-2} = \frac{8}{-8}=-1[/tex]
Substitute m = -1 and the point (2,-3) into the point slope form.
[tex]y - y_1 = m(x-x_1)\\y --3 = -1(x-2)\\y+3=-1(x-2)[/tex]
Convert to standard form by applying the distributive property and rearranging the terms.
y+3 = -1(x-2)
y + 3 = -x + 2
x + y + 3 = 2
x + y = -1
Hi So I know M∠2 + 63° (im pretty sure at least) but what does M∠3 equal?
Answer:
m<2 = 63
m<3 = 117
Step-by-step explanation:
<1 and <2 are alternate interior angles and are therefore equal. M<1 = 63 degrees, so m<2 must be the same thing.
<2 and <3 are on the same straight line.
They are supplementary.
Therefore they equal 180 degrees.
63 + m<3 = 180 Subtract 63 from both sides.
63 - 63 +m<3 = 180 - 63 Collect like terms
m<3 = 117
What is the equation of a line passing through (-3,7) and having a slip of -1/5
A.y=-5x+22
B.y=5x+33
C.y=1/5x+32/5
D.y=-1/5x+32/5
E.y=-1/5x+22
Answer:
[tex]\large\boxed{D.\ y=-\dfrac{1}{5}x+\dfrac{32}{5}}[/tex]
Step-by-step explanation:
The slope-intercept form of an equation of a line:
[tex]y=mx+b[/tex]
m - slope
b - y-intercept
We have the slope m = -1/5. Substitute:
[tex]y=-\dfrac{1}{5}x+b[/tex]
Put the coordinates of the given point (-3, 7) to the equation:
[tex]7=-\dfrac{1}{5}(-3)+b[/tex]
[tex]7=\dfrac{3}{5}+b[/tex] subtract 3/5 from both sides
[tex]6\dfrac{2}{5}=b\to b=\dfrac{6\cdot5+2}{5}=\dfrac{32}{5}[/tex]
What is the surface area of a right circular cylinder with a height of 8 meters and a base whose
radius is 4 meters?
(A)144 m2 (B)96 m2 (C)80 m2 (D)128 m2
Answer:
[tex]S.A=96\pi m^2[/tex]
Step-by-step explanation:
The surface area of a right circular cylinder is given by the formula;
[tex]S.A=2\pi r(r+h)[/tex]
where [tex]h=8m[/tex] is the height of the cylinder and
[tex]r=4m[/tex] is the radius of the cylinder.
We plug in these values into the formula to obtain;
[tex]S.A=2\pi \times4(4+8)[/tex]
[tex]S.A=8 \times12 \pi[/tex]
[tex]S.A=96\pi m^2[/tex]
Can anyone please answer this question????I really can't choose which answer to put in here!!!!!!!HELP ME PLEASE!!!!!!!30 points for who answers it.......and it is quite easy.......
Answer:B.
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
it is C because A, B, and D are triangular prisms.
The mean is defined as the
A. average of a data set
B. range of the data set
C. number that shows up most often in a data set
D. middle of the data set
what is the independent variable and the dependent variable when a large 2 topping pizza, l, cost 2$ more than a medium 3 topping pizza, m,
Answer:
Although variables wouldn't really fit for this problem, if you were to graph it, the pizza types would be on the x axis and the cost would be on the y axis since the cost of the pizzas technically "depend" on the type of pizza.
Dave and Sandy Hartranft are frequent flyers with a particular airline. They often fly from City A to City B, a distance of 756 miles. On one particular trip, they fly into the wind, and the the flight takes 2 hours. The return trip, with the wind behind them, only takes1 1/2 hours. If the wind speed is the same on each trip, find the speed of the wind and find the speed of the plane in still air.
Answer:
Plane = 441 mi/h; wind = 63 mi/h
Step-by-step explanation:
distance = rate × time
Let p = the plane's speed in still air
and w = the wind speed . Then,
p + w = speed with wind
p - w = speed against wind
We have two conditions:
(1) 756 = (p - w) × 2
(2) 756 = (p + w) × 1.5
Distribute the constants (3) 756 = 2p - 2w
(4) 756 = 1.5p + 1.5 w
Multiply Equation (3) by 3 (5) 2268 = 6p - 6w
Multiply Equation (4) by 4 (6) 3024 = 6p + 6w
Add Equations (5) and (6) 5292 = 12p
Divide each side by 12 (7) p = 441 mi/h
Substitute (7) into Equation(3) 756 = 882 - 2w
Add 2w to each side 2w + 756 = 882
Subtract 756 from each side 2w = 126
Divide each side by 2 w = 63 mph
The plane's speed in still air is 441 mi/h.
The wind speed is 63 mph.
Check:
(1) 756 = (441 - 63) × 2 (2) 756 = (441 + 63) × 1.5
756 = 378 × 2 756 = 504 × 1.5
756 = 756 756 = 756
The speed of the plane in still air is 420 miles per hour and the wind speed is 84 miles per hour.
Explanation:To solve Dave and Sandy Hartranft's problem, we set up two equations for flying into and with the wind. For Dave and Sandy flying into the wind, we use the formula speed equals distance over time: P - W = 756 miles / 2 hours. This represents the plane's speed minus the wind speed equaling the distance traveled divided by the time taken. We denote P as plane's speed and W as wind speed.
On the return trip, with the wind behind them, we calculate plane's speed plus the wind speed based on the same formula: P + W = 756 miles / 1.5 hours. Solving these two equations, you get: P = 420 miles per hour (plane's speed in still air) and W = 84 miles per hour (wind speed).
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QUIIC PLEASE NO EXPLANATION NEEDED
♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫
➷ x=-2, no explanation
✽
➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
TROLLER
There always needs to be an explanation so you understand it!
Follow this step by step.
#1. Remove all -1 on both sides.
You are left with 2(x+3)+x=0.
#2. Expand the equation.
2x+6+x=0.
#3. Simplify 2x + 6 + x to 3x + 6.
3x+6=0
#4. Subtract 6 from each side.
3x=−6.
#5. Divide both sides by 3.
x = -6/3.
#6. Simplify 6/3 to 2.
x = 2.
Therefore, you get [tex]\fbox{x = 2}[/tex].
factor 3x^2-19x+20
Final answer:
To factor the expression 3x² - 19x + 20, we find two numbers that multiply to 60 and add up to -19, which are -4 and -15. The expression can then be rewritten and factored by grouping to obtain the factors (x - 5)(3x - 4).
Explanation:
The question asks to factor the quadratic expression
3x² - 19x + 20
To factor this expression, we need to find two numbers that multiply to give the product of the coefficient of x² (which is 3) and the constant term (which is 20), and at the same time, add up to give the coefficient of x (which is -19). The two numbers that satisfy these conditions are -4 and -15, as (-4) * (-15) = 60 and (-4) + (-15) = -19.
Now, we can rewrite the expression by splitting the middle term:
3x² - 4x - 15x + 20
Factor by grouping: x(3x - 4) - 5(3x - 4)
The factors are: (x - 5)(3x - 4)
North Carolina has three times the population of Utah and twice the
population of Oregon. Arkansas has 1 million people fewer than Oregon.
If the total population of these four states is 27 million, how many peo-
ple live in each state?
North Carolina = 3 * Utah
North Carolina = 2 * Oregon
Arkansas = Oregon - 1,000,000
North Carolina + Utah + Oregon + Arkansas = 27,000,000
North Carolina = 3 * Utah
Utah = 1/3 * North Carolina
Utah = 1/3 * (2 * Oregon)
(2 * Oregon) + (1/3 * (2 * Oregon)) + Oregon + (Oregon - 1,000,000) = 27,000,000
2O + (1/3 * 2O) + O + O - 1,000,000 = 27,000,000
2O + 2/3O + O + O - 1,000,000 = 27,000,000
4 2/3 O - 1,000,000 = 27,000,000
4 2/3 O = 28,000,000
O = 6,008,584
NC = 2O
NC = 2(6,008,584)
NC = 12,017,167
A = O - 1,000,000
A = 6,008,584 - 1,000,000
A = 5,008,584
NC = 3U
12,017,167 = 3U
U = 4,005,722
The populations of the four states are as follows:
- Utah has a population of 4 million.
- Oregon has a population of 6 million.
- North Carolina has a population of 12 million.
- Arkansas has a population of 5 million.
Let's denote the population of Utah, Oregon, and Arkansas as U, O, and A, respectively. According to the information given:
1. North Carolina has three times the population of Utah: [tex]\( NC = 3U \).[/tex]
2. North Carolina has twice the population of Oregon: [tex]\( NC = 2O \).[/tex]
3. Arkansas has 1 million people fewer than Oregon: [tex]\( A = O - 1 \).[/tex]
4. The total population of these four states is 27 million: [tex]\( U + O + A + NC = 27 \).[/tex]
From equations (1) and (2), we can equate the populations of Utah and Oregon since both are related to the population of North Carolina:
[tex]\( 3U = 2O \) or \( O = \frac{3}{2}U \).[/tex]
Now, substitute the value of O from equation (3) into the total population equation (4):
[tex]\( U + \frac{3}{2}U + ( \frac{3}{2}U - 1 ) + 3U = 27 \).[/tex]
Combine like terms:
[tex]\( U + \frac{3}{2}U + \frac{3}{2}U - 1 + 3U = 27 \),[/tex]
[tex]\( U + 3U + 3U - 1 = 27 \),[/tex]
[tex]\( 7U - 1 = 27 \).[/tex]
Now, solve for U:
[tex]\( 7U = 27 + 1 \),[/tex]
[tex]\( 7U = 28 \),[/tex]
[tex]\( U = \frac{28}{7} \),[/tex]
[tex]\( U = 4 \)[/tex] million.
Now that we have the population of Utah, we can find the populations of the other states:
[tex]\( O = \frac{3}{2}U = \frac{3}{2} \times 4 = 6 \)[/tex] million,
[tex]\( NC = 2O = 2 \times 6 = 12 \)[/tex] million,
[tex]\( A = O - 1 = 6 - 1 = 5 \)[/tex] million.
Solve x 2 - x - 5/2 = 0 using the quadratic formula.
Answer:
your answer would be: x=1±√11 all divided by 2
Hope this helps
~QueenSupreme AKA Trinity
Answer: [tex]\bold{\dfrac{1\pm \sqrt{11}}{2}}[/tex]
Step-by-step explanation:
[tex]x^2-x-\frac{5}{2}=0\quad \text{multiply by 2 to get:}\\\\2x^2-2x-5=0\quad \rightarrow \quad a=2,\ b=-2,\ c=-5\\\\\text{Quadratic formula is: }x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\\x=\dfrac{-(-2)\pm \sqrt{(-2)^2-4(2)(-5)}}{2(2)}\\\\\\.\ =\dfrac{2\pm \sqrt{40}}{2(2)}\\\\\\.\ =\dfrac{2\pm \sqrt{44}}{2(2)}\\\\\\.\ =\dfrac{2\pm 2\sqrt{11}}{2(2)}\\\\\\.\ =\boxed{\dfrac{1\pm \sqrt{11}}{2}}[/tex]
As of 2008 the longest car ever built was 30.5 meters long. A meter is a little longer than a yard. Estimate the length of this car in feet.
The car would be about 90 ft
A figure is composed of two half-circles.
What is the approximate perimeter of the
figure?
14
t 14
La
14
A 110 units
C 220 units
D 248 units
B 138 units
Answer:
The answer is C, 220 units.
Which data could be represented by the box plot shown below?
Answer:
C
Step-by-step explanation:
Kerry is conducting a marketing survey. She mailed 45,128 surveys and received 17,892 responses. Approximately what percentage of people responded to the survey?
Answer:
Approx. 39.7%
Step-by-step explanation:
All you have to do is
17,892÷45,128
Answer:
40 %
Step-by-step explanation:
Percent = Responses/total surveys × 100 %
= 17 892/45 128 × 100 %
≈ 40 %
Approximately 40 % of people responded to the survey.
What is the radius, diameter, circumference,area of 3.5 cm. Please please help me
Answer:
radius=3.5 Diameter=7 Circumference=21.99 area=38.48
Step-by-step explanation: These are the answers, hope you found them helpful :)
which graph represents the function f(x) =-lx-2l-1
It’s the second one from the right
Since there’s a - behind x it means it has to be facing down so it’s either 2 or 4
Now it’s x-2 and we know that x moves the opposite so it needs to move 2 to the right so the answer is 2
Solve the system of equations. Y = 2x-2 y = x^2-x-6
Answer: (-1, -4) and (4, 6)
Step-by-step explanation:
The pair of solution to the equations y = 2x - 2 and y = x² - x - 6
are (4, 6) and (-1, -4).
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
We have two equations:
y = 2x - 2
y = x² - x - 6
Equate both equations:
2x - 2 = x² - x - 6
x² - 3x - 4 = 0
Solving using the quadratic formula:
[tex]\rm x_{1,\:2}=\dfrac{-\left(-3\right)\pm \sqrt{\left(-3\right)^2-4\cdot \:1\cdot \left(-4\right)}}{2\cdot \:1}[/tex]
x = 4, -1
y = 6, -4
Thus, the pair of solution to the equations y = 2x - 2 and y = x² - x - 6
are (4, 6) and (-1, -4).
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Kim's softball team was playing in the championship game. When there were
4
44 innings left, the team was losing by a score of
1
7
1717 to
6
66 points. In the last
4
44 innings, her team scored the same number of points per inning, and the other team did not score any more points. Kim's team won with the most points.
Answer:
The inequality is
6+4r>17
The miminum number of runs per inning is
3.
Step-by-step explanation:
8000 in scientific notation
The solution to the number 8000 in scientific notation is 8 * 10³
Expressing the number 8000 in scientific notationFrom the question, we have the following parameters that can be used in our computation:
Number = 8000
Multiply the number by 1
So, we have
Number = 8000 * 1
Express 1 as 1000/1000
So, we have the following representation
Number = 8000 * 1000/1000
Next, we have
Number = 8 * 1000
Express 1000 as 10³
So, we have
Number = 8 * 10³
Hence, the solution is 8 * 10³
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can someone please explain what is happening to rectangle A? Answer choice c says: rotate rectangle A 90 counterclockwise about the origin reflect it over the y axis and translate it 1 unit up. answer D says rotate rectangle a 90° clockwise about the origin and translated 2 units up and 6 units to the right A and B are in the pic.
C is the one you're looking for
Which quadrant is secant negative and cotangent is positive?
a)Q1
b)Q2
c)Q3
d)Q4
Answer:
c)Q3
Step-by-step explanation:
In the third quadrant, tangent and cotangent are positive while cosine and thus secant are negative. Therefore, the solution is C. Q3